5

CVE-2015-4638: f5 big-ip_advanced_firewall_manager Improper Input Validation

CVSS: 5.0v2.0MediumModified
Published 18-09-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-4638 is a medium (CVSS 5.0) Improper Input Validation vulnerability in f5 big-ip_advanced_firewall_manager. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.4% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
1.74%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-09-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The FastL4 virtual server in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, and PEM 11.3.0 through 11.5.2 and 11.6.0 through 11.6.0 HF4, BIG-IP Edge Gateway, WebAccelerator, and WOM 11.2.1 through 11.3.0, and BIG-IP PSM 11.2.1 through 11.4.1 allows remote attackers to cause a denial of service (Traffic Management Microkernel restart) via a fragmented packet.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.74%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

0.00 pp

From 1.74% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

F510 products

1 vendor · 10 products

References

2 links